Switching back to 256px textures for most things, but the weapon works best as a 512px.

assets/config.json

@@ -1,17 +1,17 @@
 {
   "textures": [
-    "assets/floor_tile_test-512.png",
-    "assets/wall_texture_test-512.png",
-    "assets/ceiling_test-512.png",
-    "assets/wood_wall-512.png"
+    "assets/floor_tile_test-256.png",
+    "assets/wall_texture_test-256.png",
+    "assets/ceiling_test-256.png",
+    "assets/wood_wall-256.png"
   ],
   "sprites": [
-    "assets/armored_knight_1-512.png",
-    "assets/cinqueda_1-512.png",
-    "assets/wood_barrel_large-512.png",
-    "assets/evil_eye_test-512.png",
+    "assets/armored_knight_1-256.png",
+    "assets/cinqueda_1-256.png",
+    "assets/wood_barrel_large-256.png",
+    "assets/evil_eye_test-256.png",
     "assets/undead_peasant-256.png"
   ],
-  "floor": "assets/floor_tile_test-512.png",
-  "ceiling": "assets/ceiling_test-512.png"
+  "floor": "assets/floor_tile_test-256.png",
+  "ceiling": "assets/ceiling_test-256.png"
 }

constants.hpp

@@ -1,7 +1,7 @@
 #pragma once
 
-constexpr const int TEXTURE_WIDTH=512;
-constexpr const int TEXTURE_HEIGHT=512;
+constexpr const int TEXTURE_WIDTH=256;
+constexpr const int TEXTURE_HEIGHT=256;
 constexpr const int RAY_VIEW_WIDTH=960;
 constexpr const int RAY_VIEW_HEIGHT=720;
 constexpr const int RAY_VIEW_X=(1280 - RAY_VIEW_WIDTH);

raycaster.cpp

@@ -67,6 +67,7 @@ void Raycaster::clear() {
 void Raycaster::sprite_casting() {
   const int textureWidth = TEXTURE_WIDTH;
   const int textureHeight = TEXTURE_HEIGHT;
+  const int halfHeight = TEXTURE_HEIGHT / 2;
 
   // sort sprites from far to close
   for(int i = 0; i < $textures.NUM_SPRITES; i++) {
@@ -126,7 +127,7 @@ void Raycaster::sprite_casting() {
       if(!(transformY > 0 && transformY < ZBuffer[stripe])) break;
     }
 
-    int texX_end = int(512 * (stripe - (-spriteWidth / 2 + spriteScreenX)) * textureWidth / spriteWidth) / 512;
+    int texX_end = int(textureWidth * (stripe - (-spriteWidth / 2 + spriteScreenX)) * textureWidth / spriteWidth) / textureWidth;
 
     if(drawStartX < drawEndX && transformY > 0 && transformY < ZBuffer[drawStartX]) {
       int vMoveScreen = int(sprite_rec.elevation * -1 / transformY);
@@ -136,15 +137,15 @@ void Raycaster::sprite_casting() {
       int drawEndY = spriteHeight / 2 + $height / 2 + vMoveScreen;
       if(drawEndY >= $height) drawEndY = $height - 1;
 
-      int texX = int(512 * (drawStartX - (-spriteWidth / 2 + spriteScreenX)) * textureWidth / spriteWidth) / 512;
+      int texX = int(textureWidth * (drawStartX - (-spriteWidth / 2 + spriteScreenX)) * textureWidth / spriteWidth) / textureWidth;
 
       float x = float(drawStartX + RAY_VIEW_X);
       float y = float(drawStartY + RAY_VIEW_Y);
       float sprite_w = float(spriteWidth) / float(textureWidth);
       float sprite_h = float(spriteHeight) / float(textureHeight);
 
-      int d = (y - vMoveScreen) * 512 - $height * 256 + spriteHeight * 256;
-      int texY = ((d * textureHeight) / spriteHeight) / 512;
+      int d = (y - vMoveScreen) * textureHeight - $height * halfHeight + spriteHeight * halfHeight;
+      int texY = ((d * textureHeight) / spriteHeight) / textureHeight;
 
       sf_sprite->setScale({sprite_w, sprite_h});
       sf_sprite->setTextureRect(sf::IntRect({texX, texY}, {texX_end - texX, textureHeight}));

texture.cpp

@@ -25,7 +25,7 @@ void TexturePack::load_textures() {
   floor = load_image(assets["floor"]);
   ceiling = load_image(assets["ceiling"]);
 
-  sf::Texture* sprite_texture = new sf::Texture("assets/evil_eye_test-512.png");
+  sf::Texture* sprite_texture = new sf::Texture("assets/evil_eye_test-256.png");
   sprite_texture->setSmooth(false);
   sf::Sprite* sf_sprite = new sf::Sprite(*sprite_texture);
   sprites.push_back({4.0, 3.55, 6, sf_sprite, sprite_texture});